Actually, morning exercise is not good.
First of all, exercising in places with many trees is to carry out aerobic exercise and enhance physical fitness.
The leaves of plants photosynthesize and release oxygen-breathing consumes oxygen and releases carbon dioxide.
At night, plants stop photosynthesis because of lack of light and only breathe.
Within 24 hours every day, the carbon dioxide concentration in the forest is the highest in the morning.
therefore
The most suitable aerobic exercise is in the Woods at night.